Global Patent Index - EP 0985440 A1

EP 0985440 A1 2000-03-15 - Cyrogenic rectification system with corona discharge feed air pretreatment

Title (en)

Cyrogenic rectification system with corona discharge feed air pretreatment

Title (de)

Kryogenisches Rektifikationsystem mit Vorbehandlung mittels elektrischer Koronaentladung

Title (fr)

Système de rectification cryogénique comprenant un prétraitement par décharge couronne

Publication

EP 0985440 A1 (EN)

Application

EP 99117808 A

Priority

US 15024498 A

Abstract (en)

A system including the pretreatment of feed air for a cryogenic air separation plant wherein feed air is passed through an electric field, oxygen is ionized, and ionized oxygen is reacted with hydrocarbons upstream of an adsorption prepurifier, and subsequent separation of the feed air by cryogenic rectification. <IMAGE>

IPC 1-7 (main, further and additional classification)

B01D 53/32; B01J 19/08; F25J 3/04

IPC 8 full level (invention and additional information)

F25J 3/04 (2006.01); B01D 53/32 (2006.01); B01J 19/08 (2006.01)

CPC (invention and additional information)

B01D 53/32 (2013.01); F25J 3/04163 (2013.01); F25J 3/04169 (2013.01); B01J 2219/0849 (2013.01); B01J 2219/0894 (2013.01); F25J 2205/86 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE ES FR GB IT

EPO simple patent family

EP 0985440 A1 20000315; BR 9904093 A 20000919; CA 2282025 A1 20000310; CN 1248481 A 20000329; ID 23704 A 20000511; KR 20000023008 A 20000425; US 6042699 A 20000328

INPADOC legal status


2002-06-19 [18W] WITHDRAWN

- Date of withdrawal: 20020424

2000-11-29 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE ES FR GB IT

2000-05-31 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000331

2000-03-15 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES FR GB IT

2000-03-15 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI